0.27.4 Android splash and Loading screen (#43)

* Remove splash colors for Android 12

* Set icon_background_color

* Remove icon_background_color

* Splash Screen test

* Fix if

* Splash screen

* get_config_platform()

* Fix package_platform

* Platform-specific splash_screen

* Added trim

* splash_screen_text

* Fix condition

* hide_loading_animation: false

* loading_screen

* Test get_pyproject()

* Declare get_pyproject

* Test my_custom_function

* Test foobar filter

* Fix splash_screen

* Test greeter

* Test context aware function

* Fix get_pyproject

* Remove macros

* Test boot and startup screens

* Fix appBootScreenMessage

* Fix show setting

* Cleanup

Author: FeodorFitsner

cookiecutter.json

@@ -10,7 +10,6 @@
     "copyright": "Copyright (c) 2023 Your Company",
     "flutter": null,
     "sep": "/",
-    "hide_loading_animation": true,
     "bundle_id": "{{ cookiecutter.bundle_id if 'bundle_id' in cookiecutter else cookiecutter.org_name + '.' + cookiecutter.project_name_slug }}",
     "org_name_2": "{{ cookiecutter.bundle_id.rsplit('.', 1)[0] if 'bundle_id' in cookiecutter else cookiecutter.org_name if 'org_name' in cookiecutter else 'com.flet' }}",
     "ios_provisioning_profile": "",
@@ -28,5 +27,6 @@
     "pwa_theme_color": "#0175C2",
     "split_per_abi": false,
     "options": null,
-    "pyproject": null
+    "pyproject": null,
+    "_extensions": ["cookiecutter_extensions.FletExtension"]
 }

cookiecutter_extensions.py

@@ -0,0 +1,22 @@
+from jinja2 import pass_context
+from jinja2.ext import Extension
+
+
+class FletExtension(Extension):
+    def __init__(self, environment):
+        super(FletExtension, self).__init__(environment)
+        environment.globals["get_pyproject"] = self.get_pyproject
+
+    @pass_context
+    def get_pyproject(self, context, setting):
+        pyproject = context.get("cookiecutter", {}).get("pyproject", {})
+
+        if not setting:
+            return pyproject
+
+        d = pyproject
+        for k in setting.split("."):
+            d = d.get(k)
+            if d is None:
+                return None
+        return d

{{cookiecutter.out_dir}}/_macros.jinja2

@@ -1,4 +1,3 @@
-{% import "_macros.jinja2" as macros %}
 plugins {
     id "com.android.application"
     id "kotlin-android"
@@ -50,8 +49,8 @@ android {
         main.java.srcDirs += 'src/main/kotlin'
     }
 
-    {% set min_sdk_version = macros.get_value(cookiecutter.pyproject, "tool.flet.android.min_sdk_version") | trim %}
-    {% set target_sdk_version = macros.get_value(cookiecutter.pyproject, "tool.flet.android.target_sdk_version") | trim %}
+    {% set min_sdk_version = get_pyproject("tool.flet.android.min_sdk_version") %}
+    {% set target_sdk_version = get_pyproject("tool.flet.android.target_sdk_version") %}
 
     defaultConfig {        
         applicationId "{{ cookiecutter.org_name_2 }}.{{ cookiecutter.package_name }}"

{{cookiecutter.out_dir}}/android/app/build.gradle

@@ -14,6 +14,25 @@ import 'package:window_manager/window_manager.dart';
 
 import "python.dart";
 
+/*
+{% set show_boot_screen = get_pyproject("tool.flet." ~ cookiecutter.options.config_platform ~ ".app.boot_screen.show")
+                        or get_pyproject("tool.flet.app.boot_screen.show")
+                        or False %}
+{% set boot_screen_message = get_pyproject("tool.flet." ~ cookiecutter.options.config_platform ~ ".app.boot_screen.message")
+                        or get_pyproject("tool.flet.app.boot_screen.message") %}
+
+{% set show_startup_screen = get_pyproject("tool.flet." ~ cookiecutter.options.config_platform ~ ".app.startup_screen.show")
+                        or get_pyproject("tool.flet.app.startup_screen.show")
+                        or False %}
+{% set startup_screen_message = get_pyproject("tool.flet." ~ cookiecutter.options.config_platform ~ ".app.startup_screen.message")
+                        or get_pyproject("tool.flet.app.startup_screen.message") %}
+
+show_boot_screen: {{ show_boot_screen }}
+boot_screen_message: {{ boot_screen_message }}
+show_startup_screen: {{ show_startup_screen }}
+startup_screen_message: {{ startup_screen_message }}
+*/
+
 {% for dep in cookiecutter.flutter.dependencies %}
 import 'package:{{ dep }}/{{ dep }}.dart' as {{ dep }};
 {% endfor %}
@@ -22,9 +41,10 @@ const bool isProduction = bool.fromEnvironment('dart.vm.product');
 
 const assetPath = "app/app.zip";
 const pythonModuleName = "{{ cookiecutter.python_module_name }}";
-final hideLoadingPage =
-    bool.tryParse("{{ cookiecutter.hide_loading_animation }}".toLowerCase()) ??
-        true;
+final showAppBootScreen = bool.tryParse("{{ show_boot_screen }}".toLowerCase()) ?? false;
+const appBootScreenMessage = '{{ boot_screen_message | default("Preparing the app for its first launch…", true) }}';
+final showAppStartupScreen = bool.tryParse("{{ show_startup_screen }}".toLowerCase()) ?? false;
+const appStartupScreenMessage = '{{ startup_screen_message | default("Getting things ready…", true) }}';
 
 List<CreateControlFactory> createControlFactories = [
 {% for dep in cookiecutter.flutter.dependencies %}
@@ -53,7 +73,8 @@ void main(List<String> args) async {
               ? FletApp(
                   pageUrl: pageUrl,
                   assetsDir: assetsDir,
-                  hideLoadingPage: hideLoadingPage,
+                  showAppStartupScreen: showAppStartupScreen,
+                  appStartupScreenMessage: appStartupScreenMessage,
                   createControlFactories: createControlFactories)
               : FutureBuilder(
                   future: runPythonApp(args),
@@ -71,7 +92,8 @@ void main(List<String> args) async {
                       return FletApp(
                           pageUrl: pageUrl,
                           assetsDir: assetsDir,
-                          hideLoadingPage: hideLoadingPage,
+                          showAppStartupScreen: showAppStartupScreen,
+                          appStartupScreenMessage: appStartupScreenMessage,
                           createControlFactories: createControlFactories);
                     }
                   });
@@ -83,7 +105,7 @@ void main(List<String> args) async {
                   text: snapshot.error.toString()));
         } else {
           // loading
-          return const MaterialApp(home: BlankScreen());
+          return MaterialApp(home: showAppBootScreen ? const BootScreen() : const BlankScreen());
         }
       }));
 }
@@ -294,6 +316,34 @@ class ErrorScreen extends StatelessWidget {
   }
 }
 
+class BootScreen extends StatelessWidget {
+  const BootScreen({
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            const SizedBox(
+              width: 30,
+              height: 30,
+              child: CircularProgressIndicator(strokeWidth: 3),
+            ),
+            const SizedBox(
+              height: 10,
+            ),
+            Text(appBootScreenMessage, style: Theme.of(context).textTheme.bodySmall,)
+          ],
+        ),
+      ),
+    );
+  }
+}
+
 class BlankScreen extends StatelessWidget {
   const BlankScreen({
     super.key,

{{cookiecutter.out_dir}}/lib/main.dart

@@ -21,13 +21,13 @@ dependencies:
   window_manager: ^0.4.3
 
 dependency_overrides:
-  flet: 0.27.4
+  #flet: 0.27.4
 
-  # flet:
-  #   git:
-  #     path: packages/flet
-  #     ref: main
-  #     url: https://github.com/flet-dev/flet.git
+  flet:
+    git:
+      path: packages/flet
+      ref: feodor/flet-0-27-5-fixes
+      url: https://github.com/flet-dev/flet.git
 
   # serious_python:
   #   git:
@@ -121,14 +121,10 @@ flutter_native_splash:
     # 768 pixels in diameter.
     image: "images/icon.png"
 
-    # Splash screen background color.
-    color: "#ffffff"
-
     # The image_dark, color_dark, icon_background_color_dark, and branding_dark set values that
     # apply when the device is in dark mode. If they are not specified, the app will use the
     # parameters from above.
     image_dark: "images/icon.png"
-    color_dark: "#333333"
 
   # The android, ios and web parameters can be used to disable generating a splash screen on a given
   # platform.